, an object is any of several types of arguments
. In subject-prominent, nominative-accusative
languages such as English
, a transitive verb typically distinguishes between its subject
and any of its objects, which can include but are not limited to direct objects, indirect objects, and arguments of adpositions (prepositions or postpositions
); the latter are more accurately termed oblique arguments, thus including other arguments not covered by core grammatical roles, such as those governed by case morphology
(as in languages such as Latin) or relational noun
s (as is typical for members of the Mesoamerican Linguistic Area
languages, for example most Australian Aboriginal languages
, the term "subject" is ambiguous, and thus the term "agent
" is often used instead to contrast with "object", such that basic word order is often spoken of in terms such as Agent-Object-Verb (AOV) instead of Subject-Object-Verb (SOV). Topic-prominent language
s, such as Mandarin
, focus their grammars less on the subject-object or agent-object dichotomies but rather on the pragmatic
dichotomy of topic and comment
In English traditional grammar types, three types of object are acknowledged: ''direct objects'', ''indirect objects'', and ''objects of prepositions''. These object types are illustrated in the following table:
Note that indirect objects are frequently expressed as objects of prepositions, complicating the traditional typology; e.g. "I gave salt ''to the man''."
verbs can have two direct objects, one being more closely bound to the verb than the other; these may be called "inner" and "outer" objects
s lack a distinction between direct and indirect objects, but rather distinguish primary and secondary objects. Many African languages fall into this typological category.
While the typical object is a pronoun, noun, or noun phrase, objects can also appear as other syntactic categories
, as illustrated in the following table for the English language
A number of criteria can be employed for identifying objects, e.g.:
::1. Subject of passive sentence: Most objects in active sentences can become the subject in the corresponding passive sentences.
::2. Position occupied: In languages with strict word order
, the subject and the object tend to occupy set positions in unmarked declarative clauses. The object follows the subject.
::3. Morphological case: In languages that have case systems, objects are marked by certain cases (accusative, dative, genitive, instrumental, etc.).
Languages vary significantly with respect to these criteria. The first criterion identifies objects reliably most of the time in English, e.g.
::Fred gave me a book.
::a. A book was given (to) me.—Passive sentence identifies ''a book'' as an object in the starting sentence.
::b. I was given a book.—Passive sentence identifies ''me'' as an object in the starting sentence.
The second criterion is also a reliable criterion for analytic language
s such as English, since the relatively strict word order of English usually positions the object after the verb(s) in declarative sentences. The third criterion is less applicable to English, though, since English lacks morphological case, exceptions being the personal pronouns (''I/me'', ''we/us'', ''he/him'', ''she/her'', ''they/them''). For languages that have case and relatively freer word order, morphological case is the most readily available criterion for identifying objects. In Latin and related languages, direct objects are usually marked with the accusative case, and indirect objects with the dative case. However, object marking may also follow non-syntactic rules, such as animacy. In Spanish, for example, human objects have to be marked by the preposition ''a'' (as an example of differential object marking
Verbs can be classified according to the number and/or type of objects that they do or do not take. The following table provides an overview of some of the various verb classes:
and object-deletion verbs can be transitive or intransitive, as indicated in the following table:
The distinction drawn here between ergative and object-deletion verbs is based on the role of the subject. The object of a transitive ergative verb is the subject of the corresponding intransitive ergative verb. With object-deletion verbs, in contrast, the subject is consistent regardless of whether an object is or is not present.
In sentence structure
Objects are distinguished from subjects in the syntactic trees that represent sentence structure. The subject appears (as high or) higher in the syntactic structure than the object. The following trees of a dependency grammar
illustrate the hierarchical positions of subjects and objects:
[Dependency trees similar to the ones produced here can be found in Ágel et al. (2003/6).]
The subject is in blue, and the object in orange. The subject is consistently a dependent of the finite verb
, whereas the object is a dependent of the lowest non-finite verb
if such a verb is present.
*Ágel, V., L. Eichinger, H.-W. Eroms, P. Hellwig, H. Heringer, and H. Lobin (eds.) 2003/6. Dependency and valency: An international handbook of contemporary research. Berlin: Walter de Gruyter.
*Biber, D. et al. 1999. Longman Grammar of spoken and written English. Essex, England: Pearson Education limited.
*Carnie, A. 2013. Syntax: A generative introduction, 3rd edition. Malden, MA: Wiley-Blackwell.
*Collins Cobuild English Grammar 1995. London: HarperCollins Publishers.
*Conner, J. 1968. A grammar of standard English. Boston: Houghton Mifflin Company.
*Freeborn, D. 1995. A course book in English grammar: Standard English and the dialects, 2nd edition. London: MacMillan Press LTD.
*Keenan, E. and B. Comrie 1977. Noun phrase accessibility and universal grammar. Linguistic Inquiry 8. 63–99.
*Kesner Bland, S. Intermediate grammar: From form to meaning and use. New York: Oxford University Press.
External linksDirect Objects